Rayflon provides a wide variety of custom designed PTFE machined parts like PTFE bushings,Website:http://www.rayflon-seals.com, bearings, pulleys and rolls that meet customer specifications.All parts are precision machined by CNC lathes within the smallest tolerance range. All materials PTFE are purchased from world famous brands to ensure the superior quality. This PTFE Pulley wheels is self-lubrication and has the lowest coefficient of friction against any solid suitable for many industrial applications.